Redraw / stuttering & lag when using sliders processing raw files

when processing Rawls files adjustments are not actively live, for example when I enlarge,rotate or adjust position of a raw image i move the sliders and release the click of the mouse (or raise my pen from wacom) and the image will not have responded until,I do so , so you can't position ,rotate ect... live you have to move in minor incremental steps and wait to see the result, when processing huge volume of raw files as I do this costs me hours and hours in production time , any one else having this problem ,or got a work around , no I'm not keen on reverting to previous version, I need an update or solution